Internal-combustion pressure-pump.



J. A. MCINTYRE.

INTERNAL comusnow PRESSURE PUMP.

APPLlCATlON FILED NOV* 27,1914. Y i Patented Feb. 10, 191() 2 SHEETS--SHEET l.

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.L A. MCINTYRE.

INTERNAL COMBUSTION PRESSURE PUMP.

APPLICAUOM FILEDMOV. 27. 1914.y

Patente Feb. 1916 2 SHEETS-SHEET 2.

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JOI-IN A. MGINTYRE, OF DENVER, COLORADO.

INTERNAL-COMBUSTION PRESSURE-PUMP.

Specification of Letters Patent.

retenir-ed Feb. i5, 1ere.

Application led November 27, 1914. Serial No. 874,111..

y To all whom it may concern:

Be it known that I, JOHN A. MoINrYrui,- a

citizen of the the United States, residing 1n the city and county of Denver and State of Colorado, have invented certain new and useful Improvements'in Internal-Combustion Pressur'eLPumps; and I do declare the following-to be a full, clear, and exact description of the invention, such as will enable others skilled inthe art to which it appertains to make and use the same, reference being had tothe accompanying drawings, andA to the characters of reference marked thereon, which form a part of this specification.

-My invention relates to improvements in internal combustion pumps, or constructions which are adapted to raise water through the instrumentality of the pressure generated by explosions, the force of which is delivered to the water to be raised in such va manner that the latter is yadvantageously lifted in a continuous stream..

My improvement comprises a doublecylindrical construction in each member of which the explosions take place and are properly timed in alternate relation.

In my improved construction, the charge of explosive mixture is drawn into one extremity of either cylinder as the piston therein is moved toward the opposite extremity as the result of a partial vacuum produced on the opposite side of the piston of the other cylinder', due to the combustion, whereby the oxygen of the air has been con- I sumed. In other words, every time an explosiontakes place in one piston chamber, he force of the explosion acts to open an utwardly openingcheck valve with which the piston is` provided, the said check valve nprmally closing ports in the piston. The l.force of this explosion after opening the check valve, passes through a conduit to the surface of the water from which the supply is to be taken. The partial vacuum produced by the explosion servesto return the piston in the cylinder where the last exf plosion took place, to the .opposite end of the cylinder from that which it occupied at the time of the explosion. This last named movement of the piston in one lcylinder impartsran,V outward movement to the f 'o'itthe other cylinder,` due to the fact that the two cylinders are connected by the same piston stem. The said outward movement just stated results 1nl drawing a charge of expiston plosive mixture into the cylinder where such movement takes place, and this is immediately followed by an explosion in said cylinder which, in its results, is a repetition of the explosion first explained. The meclu nism for alternately igniting the charges in the two cylinders, is constructed and varranged to be automatically operated through the medium of a cam, which acts alternately on the opposite extremities of a rocking bar, the opposite ends of said bar carrying liquid which is caused to flow alternately from one cell to the other, the excess of liquid in either cell serving to depress a contact and close the corresponding circuit for igniting the explosive mixture in the corresponding cylinder.

Having briefly outlined my improved construction, I will proceed to describe the sameV in detail, reference being made to the accompanying drawing, in which is illustrated an embodiment thereof. y

In this drawing,-Figure 1 is an elevation partly in section, of my complete duplex internal combustion pump. Fig. 2 is a central vertical section taken through both the cylinders of the pump, the upper part of the pump-conduit construction being also illustrated, and shown on a larger scale than in Fig. 1. Fig. 3 is a fragmentary section illustrating the outer extremity of one of the piston chambers, shown on a still larger scale.

Fig. is an end elevation of my improved pump, or a view looking in the direction of arrow 4, Fig. 1.

The same reference characters indicate the same parts in all the views.

Let the numeral 5 designate a suitable foundation or bed, upon .which are mounted and made fast two cylinders 6 and 7, which are substantially identical in construction; beingsuitably spaced :tor the purpose. Within these chambers are located pistons 8 and 9, which are mounted on the opposite extremities of a stem 10, which consists of two hollow members 12 and 13, Whose inner extremities are threaded into the opposite ends of an ellipsoidal connection 14:, which is provided with a central cavity 15 having an outlet 16 to the atmosphere. Each of the piston stem members 12 and 13 is open at its inner extremity and' communicates with the cavity 15 of the hollow cam or ellipsoidal connection 1.4; while its o posite extremityvl located frame work 40 and suitably spaced,

mally closed by a check valve 19,l through the medium of a spiral spring 20, one extremity of which acts on the valve, while the other extremity engages a stop collar 21 threaded on the outer extremity of the stem member.` Just outside or beyond the check valve when in its`norrnal position, each pistion stem member is provided with one or more perforations 22, through the medium of which the outer compartment 23 of each piston chamber is in communication with the atmosphere by way of the hollow piston stem member, the cavity 15 of the cam 14, and the opening 16 communicating therewith, as heretofore explained.

The inner extremity of each cylinder 6 is provided with a stulingbox 24, through which the corresponding piston stem member passes and whereby a tight joint isy formed between the said stem and the opening in the inner head 25 of each cylinder. Thr outer head 26 or' each cylinder is provided with an extension sleever 27, which is exteriorly threaded to receive a screw cap 28,'which, when removed, will give the person in charge access to the check valve extremity of the adjacent cylinder. The extension sleeve 27 forms a cavity 29 which is a continuation of the piston chamber andl provides a space into which the outer end of the corresponding piston stern member slightly protrudes. extremity of Fig. 2).

The gasolene or other suitable' volatile Huid for supplying the pump may be obtained from any suitable source. As illustrated in the drawing,` this fluid is obtained by gravity from a tank 30, which is mounted'abovc the cylinders of the pump and supported in any suitable manner. downwardly from this tank is a whose Alower (See the right hand pipe 31, extremity 32 communicates with a carbureter 33, the latter in turn ,com. municating with a pipe 34 which extends in f one cell into the other, the time for this exopposite directions from the carburetor, bcing composed of two members 35 and 36, each member being equipped with a check valve 37, beyond which is located a spark plug 38 which projects into a small chamber 39 connected by means of a short 'depending pipe 2 with the inner extremity of the adjacent cylinder. Mounted on a centrally are two pairs of contact members, the said pairs being respectively designated by the numerals 41 and 42. The individual mernbers of one pair are designated by the numerals 3 and 4, while those of the other pair are respectively designated by the numerals 44 and 45. The upper contact of each pair consists of a relatively weak spring, which is normally spaced `ifrom .the lowercontact member, whereby the circuit in which the same is located, is bro/ken.'v The source of electricity which supplies the cur- 38 mounted on the cylinder 7.

and/61, their lower extremities Leading rent of the spark plug circuits, is designated by the numeral 4 6 (see Fig. 2). From one pole 47 of this sourcea conductor 48 leads to a-resistance coil. 49; while a conductor 50 leads from the opposite pole 51 to the saine coil. From this coil leads a conductor 52 to the contact 4, while rom'the contact 3 a conductor 53 leads to the spark plug A conductor 54 leads vfrom the conductor 52 to the contact 45; vwhile from he contact 44 a conductor 55 leads to the spark plug 38, mounted on the cylinder 6. A conductor 56 leads from the resistance coil 49 to a point 57 on the metal part of the apparatus, whereby the secondary circuit may be said tobe grounded, since the entire metal frame work of the structure with the exception of the two pairs of contacts 4l and 42 which are insulated therefrom, is placed in one branch of the circuit, whereby the spark plug circuit may be employed from the point of either part of the structure, for the purpose of extremity of either cylinder, as hereinafter more fully described.

`Pivotally connected with the framework 40 as shown at 58, is a pipe 59, whose op# posite yextremities are, respectively in com munication lwith cells or small chambers 60 vided with short ownwardly extending pipe members and 63, which connectwith the extremities of thepipe'59. Extending downwardly below the extremities of the pipe 59 are projections 64 and 65, whose lower extremities are equipped with antifrictional rollers 66 and 67. The cells 60 and 61 contain a quantity of liquid and the rollers 66 and 67 are so arranged that they are alternately acted upon by the ellipsoidal cam 14,to tilt the pipe 59 and its connections suliciently to cause liquid to flow from change of liquid to take place being so arranged that the quantity in one'cell or the other will be suflicient to cause the receiving cell, by virtue of `its greater weight and through the medium of a projection 68 with which it is equipped, to press theupper contact 3 or 44, asthe case may be, into plug to the adjacent lmetal,

being proengagement with its companion contact 4 or 45, whereby the circuit is closed through` one of the spark plugs and the explosive mixture ignited in one of the cylinders. Ilacli member of the piston stem is equipped tze with a stop collar 69, which is adjustable thereon through the medium of a set bolt 70. Each of these stop collars, as it approaches the inner head of theadjacent cylinder, engages a spring 71 forming a buii'er or cushion, to prevent the piston of the adt jacent cylinder from moving too far toward therouter head ofthe cy1inder. In other casing 76 closely fits. rThe lower extremi tremities of the two' cylinders, are pipes 72 and 73, the upper extremity of each of these pipes beingin communication with the outer of movement, while the opposite extremities of these pipes communicate as shown at 74, with the uppery extremity of an annular chamber 75 formed between the depending inner and outer casings, 76 and 77. The casing 76 includes a central chamber or conduit 78, whose` upper extremity is in communi'cation with a tank 79 while its lower extremityy which is exteriorly flared as shown at, 80, terminates a short distance above the lower extremity of the casing 77. The lower extremity of this rlast named casing has an opening 81 adapted to be closed by a check valve 82 vertically slidable on a stem 83, which is threaded into a rspid'er member 84 fitted into the lower extremity of the casing 77 The valve 82 has suliicient vertical movement to permit it to move upwardly, whereby ,the opening 81 in the bottom of the casing7 7 is uncovered to permit th'e free upwardpassage of water intoV the said casing. The ylower extremity of the casing 76 is also provided with a perforated spidermember 85, whose openings are adapted to be closed by a check `valve 86 which is vertically slidable on a stem87. The casing 77 is secured at its upper extremity to a cap 88, in which the ties ofthe two conduits 72 and 73 are threaded into perforations formed in this cap. An outer perforated casing 89 surrounds the casing 77 and is annularly spaced therefrom .as shown at 90. This casing 89 is perforated for the admission of water to the annular ,chamber 90, surrounding the casing 77, as heretofore explained. These casings 76, 77 and 89, ex-

tend downwardly into the body of water91, constituting the source of supply from which the water is pumped ,through the medium of my improved apparatus.

Each cylinder is surrounded by a water jacket 92,k from the lower part of which a conduit 93 leads to the tank 79. The upper portion of each water jacket 4is connected by means of a pipe 94 with the corresponding conduit 93. By means of this construction, a circulation of' water through the water jacket is maintainedjduring the operation of the pump, whereby the cylinders in \1vhich the explosion takes place, are kept coo y The inner surface of each cylinder is -lubricated through the medium of an .oil

Acup 95, having a tubular outlet l96, whosev compartments 23 of the cylindersf When the pistonsv are at their outward llnnt `inner extremity delivers lubricating material of thev proper character to each cylinder surface. The movement oi the pistons invtheir respective cylinders serves toy distribute this lubricating material.

The'operation of my improved construction will be described as follows: Normally,

the pistons 8.and 9 of the two cylinders oc- .cupy opposite positions therein, that is, to

say, are located near opposite extremities j of their respective cylinders; one piston being at its outward'limit of movement of the other at its inward limit of movement. Ifit be assumed that the piston 8 has just been moved from the inner extremity of the cylinder toward its outer extremity, or the position shown at the right of Fig. 2, while the piston 9 has been simultaneously Amoved tothe position shown in the same figure, a charge of explosive mixture will have been drawn into thecylinder 6between the piston 8 and the inner head of the cylinder.l

Simultaneously with the entrance of such charge, the pipe 59 and its connections, has been tilted from the horizontal position to the position shown in Fig. 2, whereby the liquid 'from the cell 60 or a portion thereof, will flow into the cell 61, the time required for such travel being so arranged as to properly time the` closing of the contacts 44: and 45, which is accomplished automatically by the pressure of the projection 68 upon the contact member 44, due to the increased weight of the cell 61, resulting from the excess of liquid therein. As soon as this occurs, the circuit in which the right hand spark plug 38' (see Fig. 2) is located, will be closed, and the chargerof explosive mixture m the inner compartment of the cylinder 6 ignited. The force of this explosion acting through the ports 18 of the piston 8 will move the check valve 19 to the dotted line position (see Fig. 2). The explosive mixture entering the compartment 23, will pass downwardly through the conduit 72, and enter the annular chamber 75 between the casings 76 and 7 7 This pressure acting on the water in said chamber, will close the check valve 82 and open the valve 86,whereby the water is caused to pass upwardly through the casing 76, and the tank 79, and thence upwardly through a conduit 97 to the desired elevation, it being assumed that the main receptacle to which the water is delivered, is located above the cylinders whereby the water jackets of the cylinders are kept filled, the circulation therein ,being established through sion of the mixture within the cylinder 6 as just explained, and the movement of the check valve 19 to the dotted line position, the perforations 22 adjacent the piston 8 were closed, thus preventing any loss to the atmosphere of the pressure produced by this explosion, and causing the entire-force of this pressure to be expended upon' the water for elevating purposes, as justexe` f plained. However, as soon as the force-of this explosion has been spent, a partial vac! uum exists within the cylinder 6 at the left of the piston 8 (see Fig. 2), with the result that the check'valve 19 will move to the position to close the ports 18 of the piston, und 'open the perforations 22 of the hollow piston stem member 12. Hence, the piston 8 will move toward the left within its cylinder in response to the pull'of this partial vacuum, during which time air will enter the cylinder at the right of the piston. The piston 8 will move toward the left to a position fairly near the head of the cylinder, but not close enough to cut off communication between the cylinder and the explosive mixture from the pipe 40, the cylinder .head being checked in its inward movement by a cushion between the saidl head and the piston, there being enough fluid at the left of the pistonito form=such cushion. During the movement of the piston 8 toward the left, as just explained, the piston 9 will have moved in the same direction within the cylinder 7 with the result that a charge of explosive mixture is drawn into the cylinder 7, at the right of its piston 9. As soon as this occurs, the ellipsoidal cam 14 will have moved toward the left far enough to tilt the yrocking pipe 59 and its connections to a positionthe reverse of that shown in Fig. 2, Qvhereby the liquid from the cell 61 will-How finto the cell 60, and cause the spring contact 3 to engage its companion contact 4, and close the circuit through the left hand spark plug 38, whereby the charge of explosive mixture at the right of the piston in the cylinde" 7, will be ignited,` and the force of this explosion will act through the ports 18 of this piston and the pipe 73, upon`the upper surface of the water within the an' nular chamber-75, with the result that the water is raised to the chamber 78 of the casing 76, as heretofore described. In this manner, explosions occur lalternately `in the two cylinders and the .operation heretofore described is repeated-as long as tho pump is in operation.

In order to-prevent back pressure through l the conduits 72 and 73 from the water chamber 75, each of these conduits is provided with a check valve 99 located just above the top of the chamber 75. These check valves open toward the said water chamber, or in the direction .of the travel of the explosive force from the'V outlet compartments A26 of the cylinder chambers.

Having thus described I claimis,- j f 75 1. A pump of the class described, com-. prising two stationary chambers, pistons located in the respective chambers, a stem to which both pistons are made fast, the pis-, tons dividing their respective chambers into 80 inlet and outlet compartments, the stem bemy invention, what ing longitudinally movable in the chambers,

means voutside of the chambers for limiting the movement of the pistonsin both direcI- tions, each piston having ports, spring-held valves normally closing the said ports in.. the outlet side, andl adapted to open in re-r spense to explosions in the inlet comparti ments, a. water-containing chamber in` com;y y munication with the source of supply, anden.

-conduits leading from the outlet compartlments of the piston chambers to said waterv haust purposes, means for alternately pro-` ducing explosions in the inlet compartments', and 4means for maintaining the pistons sta-,l tionary during such explosions.

3. The combination of two chambers, pistons therein respectively dividing the cham-v bers into inlet and outlet compartments, the

pistons having ports, spring-held check valves normally closing 'the said ports .on 115 the Voutlet compartn'ient sides of the pistons and adapted to open in response to the exi plosions in the inlet compartments of the chambers, a stem to' which both pistons are secured, the stem being hollow and open to the-atmosphere between the chambers and having perforations in the inlet compart-A ments of the chambers which are open when the piston ports are closed, the piston checkv y valves being adapted to close said porterations when the said ports are open. n

4. ".lhe combination with two chambers, pistons therein respectively dividing the, y chambers into inlet and outletL compart-v ments, the pistons having ports, spring-held 13o Check Valves normally closing the said ports on the outlet compartment sides of the pistons, said valves being adapted to open in response to explosions in the inlet compartments of the chambers, a hollow stein to which both pistons are secured, the. said stem being open to the atmosphere beyond lthe chambers and having perforations in the outlet compartments of the' chambers which are open when the piston ports are closed, the piston che-ck valves being slida,

`ble on .the stem t-o close said perforations when the piston ports are open, means for alternately producing*` explosions in the inlet 'compartments ot' the chambers, and y means for `conducting the explosive force from-the voutlet con'ipartments of the elianibers to the. water to be raised.

5.'The 'combination ot two chambers, pistons therein Arespectively dividing the chambers into inlet and outlet compartments,` the -pistons hai-*ing ports, spriiigeheld check valves normally elosiugftlie said ports on the outletcompartment sides of the pistons, v said valves vbeing adapted toppen.4 in respouse to explosions in the inlet compartments ofthe chambers, a hollow steiii to whichbotli pistons are secured, the said 'stem l beingiopen to the atmosphere beyond the chambers andv having perforatious in the outlet compartments of the chambers which ai'eQopen,-;wlieii the pistou ports are closed,

' the piston check'yalves being sliilablc onl the stem tofclose said periorations when the.

'pistou ports areopeu, means lfor alternately f3 f escape of the explosive. force to the water to be raised, pistonsloealeil betueeiilthe inlet and outlet, extremities of the respective chambers auilhavingr ports, ebeek valves vlor normally closing saiil ports ou the outlet siiles olf the pistons, a piston stein to which the. pistons are both secured, the saiil stein being hollow aiul serving as a eomluit l'or the escape of' the. exhaust from the out l let compartments oi the chambers to the atmosphere, means actuated by the force of the explosions in the outlet eoinpal'tmeiits` ol' the ehainbers lfor cutting ott' the exhaust l'roin the outlet compartment o't' the chamber in which the explosion occurs, during such` explosion, means for alternately producing explosions in the inlet compartments of the two chainbei's and means for holding the pistons .against movement in the direction ofthe force of the explosion during such explosion, the pistons being, however, free to more in the opposite direction in response to the partial vacuum produced, in the inlet compartment of the explosion chamber after the explosion.

7. A pump comprising two chambers, each of which has an inlet"l for explosive mixture at one extremity, and an outlet -ior explosive force at its opposite extremity, pistons located in the respective chambers between the inlet and outlet extremeties thereof, and

having,v normally-#closed check valve-conl 80 trolled ports, means for alternately introducing explosive mixture into die inlet compartments oi thetwo chambers', means for ignitingsuch mixtureJ at properly timed intervals, including two` liquid containing 8 cells, a conduit connecting the cells and pivoted iter tilting purposes, :i Stein. connecting the twopistons and carrying a cam, the 'opposite extremities oi the conduit carrying 'lateral projections, rand, depending projee 90 tions adapted to be. acted on by the cam for tilting purposes, and two pairs of normally separated contacts arranged adjacent the' opposite extremities of the said conduit, and

adapted to be acted on. by the said lateral projections, whereby the cell extremities of` the conduit are arranged to alternately bring the pairs of normallyseparated contacts into engagement for circuit closing pu rposes. V

S. The `combination of two piston chambers7 pistons therein respectively dividing the chambers into inlet and outlet compartments` the pistons having normally closed.I

elieetv valve-controlledportsadapted. to open 'v y in response to explosions in the inlet compartments of thechambers, conduits leadingv from the. outlet compartments of tlie.chambers to the water to be raised, a stein to which both pistons are'secnred, said stem 110 being hollow and forming communication between the outlet canipi-rtments of the pis ton chambers and the-atmosphere for exhaust purposes, means for alternately producing explosions in the inlet compartments,

compartment by the exfplosions. v12D ln testimony wliereo I ailix my signature l 'in presence ot two witnesses.

JOHN A. l\-clN'l`YR-E. lV itiiesses: f i

MAzii Klum', i A. llinui'r (YBiiiiiN. 

